BirdAnalyst
Species · BCR 12 · BBS 2026 Release · 1966–2025

Dickcissel In Boreal Hardwood Transition

All regionsBoreal Hardwood TransitionGrassland birds

Dickcissel in Boreal Hardwood Transition has declined: down 44% on the route-weighted index since 1968.

-44%Since 1968TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →
43Routes In RegionSurvey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
47YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable SignalsNotable signalsLong-arc shifts the engine flags automatically — sustained declines or increases large enough to stand out from year-to-year noise.Full methodology →

No notable trend signals for Dickcissel in Boreal Hardwood Transition. See the full index history below.

Dickcissel In Boreal Hardwood Transition Population Forecast

If the recent trend holds, Dickcissel in Boreal Hardwood Transition is projected to rise about 299% by 2030 — from 0.10 in 2025 to a central estimate of 0.38 (95% range 0.00–1.1). A 5-year backtest shows a typical error of ±148.3%, with 80% of held-out values landing inside the 95% band.

+299%Change by 2030TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →
0.38Projected 2030 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
0.00–1.195% range95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
±148.3%Backtest errorBacktest errorTypical error when we hold out the most recent years, forecast them, and compare to what actually happened. Lower means a more trustworthy projection.Full methodology →
If the recent trend holds, Dickcissel in Boreal Hardwood Transition is projected to rise about 299% by 2030 — from 0.10 in 2025 to a central estimate of 0.38 (95% range 0.00–1.1). A 5-year backtest shows a typical error of ±148.3%, with 80% of held-out values landing inside the 95% band.19662030
Projection of the recent trend (dashed) with 80/95% bands — a projection, not a prediction. Habitat, climate, and land use are not modeled.
YearProjected indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →95% low95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →95% high95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
20260.360.001.1
20270.370.001.1
20280.370.001.1
20290.380.001.1
20300.380.001.1

Routes In Boreal Hardwood Transition

Routes recording Dickcissel in Boreal Hardwood Transition.
Recent countThe raw number of individuals recorded on this route in its most recent survey year. A single-route tally, not a trend.Full methodology →
McgregorMINNESOTA262021
FloodwoodMINNESOTA112021
BackusMINNESOTA92022
Wigwam BayMINNESOTA62021
Iron RiverWISCONSIN62023
WarroadMINNESOTA52021
Union TwpWISCONSIN52023
Amnicon FallsWISCONSIN52023
WilsonMICHIGAN42006
CunardMICHIGAN42021
CathroMICHIGAN41988
Sand LakeMICHIGAN42017
HollisterWISCONSIN42012
Hubbard LakeMICHIGAN31988
BayfieldWISCONSIN32023
Rib LakeWISCONSIN32021
Pine RiverMINNESOTA22023
CohassetMINNESOTA22021
ChaffeyWISCONSIN22021
IrmaWISCONSIN22025
BashawWISCONSIN22025
CavourWISCONSIN22006
BerglandMICHIGAN12022
Lake CityMICHIGAN12010
PickfordMICHIGAN12017

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14.